HIGHVulnerability

CVE-2026-64562

In the Linux kernel, the following vulnerability has been resolved: KVM: nVMX: Hide shadow VMCS right after VMCLEAR free_nested() frees the shadow VMCS while vmcs01 still points to it. But because it is asynchronous with respect to loaded_vmcs_clear(), the vCPU might migrate before the pointer is cleared and __loaded_vmcs_clear() may then execute VMCLEAR. The VMCS needs to stay attached until its explicit VMCLEAR completes, but then it can be hidden and the page safely freed.

Properties

severity
HIGH
score
8.8
cve_id
CVE-2026-64562
vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
published_at
2026-08-04T07:16:31.093
last_modified
2026-08-17T05:18:02.057

Related Entities (1)

DESCRIBED_BY (1)

[Source]NVD

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